CN202926583U - Follow-up device of oil pump - Google Patents
Follow-up device of oil pump Download PDFInfo
- Publication number
- CN202926583U CN202926583U CN 201220386457 CN201220386457U CN202926583U CN 202926583 U CN202926583 U CN 202926583U CN 201220386457 CN201220386457 CN 201220386457 CN 201220386457 U CN201220386457 U CN 201220386457U CN 202926583 U CN202926583 U CN 202926583U
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- Prior art keywords
- oil
- follow
- valve ball
- plunder
- valve
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- Expired - Fee Related
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Abstract
The utility model discloses a follow-up device of an oil pump. A guiding hole is drilled in a position which is 10mm to 15mm away from the center of the top of a fixed valve assembly. The follow-up device (3) is arranged in the hole. A top cap (8) is arranged on the top of the device. A guiding rod (9) is arranged in the middle of the device and a cover-shaped nut (10) is arranged on the lower portion of the device. When an oil pumping rod drives a plunger to move to an upper dead center, a fixed valve ball (4) is separated from a valve seat (5) under action of vacuum, meanwhile, the follow-up device (3) is jacked up and then crude oil flows into an oil pump cylinder from the periphery of the valve ball (4). When the oil pumping rod drives the plunder to move to a lower dead center, an oil inlet valve ball (4) and the follow-up device (3) are closed under action of self-gravity, the plunder moves down, liquid in the pump cylinder is squeezed, two sets of floating valve balls on the upper level and the lower level in the plunder are opened under pressure and the crude oil in the pump cylinder flows to an above space of the plunder by passing by the floating valve balls. If the valve ball is attached to the top, the oil pumping rod and the plunder are driven by an oil pumping machine to knock the follow-up device (3) so that the valve ball is directly pushed back to the valve seat (5) and the function of pumping the oil is recovered.
Description
Technical field
The utility model relates to a kind of oil field equipment, particularly relates to the oil well pump of oil recovery well.
Background technique
Oil well pump is a kind of special-purpose pumping unit in oil field, and it is that underground crude oil is drawn into ground.Existing oil well pump is comprised of pump barrel, plunger, tubing coupling, oil-feed valve assembly etc.Oil well pump is mounted in the lower end of tubing string, be immersed in the media such as crude oil, water, rock gas, during oil pumping, pumping unit connects oil pump plunger piston by sucker rod and pumps, again by the wander up and down valve ball in plunger and the interoperation of standing valve ball, crude oil is extracted into again and again ground, then is passed in oil tank by the surface duct collection.Existing oil well pump in use, sometimes because of the standing valve ball in opening state, because the top phenomenon is inhaled in the reason generation of filth, jelly, be that the standing valve ball is in opening state and is held by the top greasy dirt, thereby the oil well pump oil pumping was lost efficacy, the method that solves this type of fault takes to hit the pump operation usually, the over-stroke that is about to sucker rod is cancelled, make pumping unit drive sucker rod, plunger carry out multiple impact to the standing valve assembly, can allow valve ball fall back on valve seat by clashing into and vibrating, make oil well pump recover oil pumping function.Take the above-mentioned pump measure of hitting; can recover a part of oil well pump oil pumping function; need shutdown of pumping machine but implement, need the implements such as crane, also have quite a few oil well pump to recover; because oil well pump is underground far away from several kms; can't see, can not touch, is under cover fully; therefore, the operation that to implement once to hit pump be time-consuming, a consumption power, spend.
The model utility content
In order to overcome the defects of existing oil well pump, the utility model designs a kind of oil well pump followup device, by oil well pump 1, and standing valve assembly 2, followup device 3, valve ball 4, valve seat 5, adapter coupling 6, sand control screen 7 consists of, and at standing valve assembly 2 endoporus, a followup device 3 is set.The eccentric 10-15mm of described followup device 3 center lines and standing valve assembly 2 center lines, the guide rod top of followup device 3 is that the bottom of top cap 8, guide rod 9 is acorn nuts 10.The principle of this device is as follows, and when sucker rod upwards aspirated together with oil well pump, valve ball was raised under vacuum action, and the jack-up followup device also upwards rises simultaneously, and crude oil namely enters oil pump sleeve from the valve ball surrounding.When sucker rod drive plunger moves to lower dead center, oil-feed valve and followup device are closed under the own wt effect, plunger continues descending, liquid in pump barrel is squeezed, just mineralization pressure, under this pressure-acting, two valve balls in up and down are opened in plunger, and the crude oil in pump barrel is just by flowing to the plunger upstream around the travelling valve ball.above-mentioned followup device is synchronizeed with valve ball in the stroke of up and down and is risen and descend, because it is the part of very light in weight, rise and the decline process in wasted work neither, do not consume energy again, all valve ball is carried out primary collision at every turn, make valve ball can not inhale the top on the one hand, one side is due to the principle of bias again, promote the valve ball automatic rotation, thereby reach the uniform wear of ball and seat, moreover, maximum benefit is just in case the top phenomenon occurs to inhale valve ball, when the pump operation is hit in employing, plunger base is directly contacted with followup device, can back into valve ball on valve seat fully, the reparation success rate is improved greatly.
The beneficial effects of the utility model are: the followup device of increase drops into very little, but act on very large, not only can make the oil-feed valve ball can not inhale the top phenomenon, prevent that namely standing valve lost efficacy, also make simultaneously the certain small rotation of the each generation of ball, reach uniform wear, the purpose that increases the service life.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples
Fig. 1 is structure principle chart of the present utility model
Fig. 2 is the followup device structural drawing
In the drawings: 1, oil well pump, 2, the standing valve assembly, 3, followup device, 4, valve ball, 5, valve seat, 6, adapter coupling, 7, sand control screen, 8, the top cap, 9, guide rod, 10, acorn nut.
Specific implementation method:
In Fig. 1, by machining, standing valve assembly 2, followup device 3, valve ball 4, valve seat 5, adapter coupling 6, sand control screen 7 are processed, during assembling, first followup device 3 is put in the followup device hole from the bottom, then followup device 3 top, top caps 8 and acorn nut 10 are screwed on guide rod, the screw thread hacking that stretches out, prevent from getting loose, then valve ball 4 and valve seat 5 are put in valve ball seat hole, tighten adapter coupling 6, then standing valve assembly 2 is screwed in oil well pump 1 box cupling.Then connect sand control screen 7, the lower end that at last whole oil well pump assembly is screwed to tubing string gets final product.
Claims (3)
1. oil well pump followup device, by oil well pump (1), standing valve assembly (2), followup device (3), valve ball (4), valve seat (5), adapter coupling (6), sand control screen (7) consists of, and it is characterized in that at standing valve assembly endoporus, a followup device (3) being set.
2. a kind of oil well pump followup device according to claim 1, is characterized in that: the eccentric 10-15mm of followup device (3) center line and standing valve assembly center line.
3. a kind of oil well pump followup device according to claim 1 is characterized in that: the guide rod top of followup device (3) is that the bottom of top cap (8), guide rod (9) is an acorn nut (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386457 CN202926583U (en) | 2012-07-30 | 2012-07-30 | Follow-up device of oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386457 CN202926583U (en) | 2012-07-30 | 2012-07-30 | Follow-up device of oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926583U true CN202926583U (en) | 2013-05-08 |
Family
ID=48216552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220386457 Expired - Fee Related CN202926583U (en) | 2012-07-30 | 2012-07-30 | Follow-up device of oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573594A (en) * | 2012-07-30 | 2014-02-12 | 河南信宇石油机械制造股份有限公司 | Oil pump capable of preventing fixed valve from failing |
-
2012
- 2012-07-30 CN CN 201220386457 patent/CN202926583U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573594A (en) * | 2012-07-30 | 2014-02-12 | 河南信宇石油机械制造股份有限公司 | Oil pump capable of preventing fixed valve from failing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HENAN XINYU PETROLEUM MACHINERY MANUFACTURING CO., Free format text: FORMER NAME: XINYU PETROLEUM MACHINERY AND CHEMICAL CO., LTD., PUYANG CITY |
|
| CP03 | Change of name, title or address |
Address after: Hualong District of Puyang City, Henan Province, 457006 State Road 106 and Kam Tin Road intersection East 100 meters Patentee after: Henan letter space petroleum machinery is manufactured limited company Address before: Hualong District, Puyang City, Henan Petrochemical Road northbound 457001 Province Patentee before: Xinyu Petroleum Machinery and Chemical Co., Ltd., Puyang City |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Follow-up device of oil pump Effective date of registration: 20140320 Granted publication date: 20130508 Pledgee: Bank of China, Limited by Share Ltd, Zhongyuan Oilfield Branch of Puyang Pledgor: Henan letter space petroleum machinery is manufactured limited company Registration number: 2014990000182 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20180730 |